Import LLVM 4.0.0 rc1 including clang and lld to help the current

development effort on OpenBSD/arm64.

1 files changed, 8 insertions, 7 deletions

diff --git a/gnu/llvm/lib/CodeGen/VirtRegMap.cpp b/gnu/llvm/lib/CodeGen/VirtRegMap.cpp
index 8a3a0328870..0d506d64665 100644
--- a/gnu/llvm/lib/CodeGen/VirtRegMap.cpp
+++ b/gnu/llvm/lib/CodeGen/VirtRegMap.cpp
@@ -73,8 +73,8 @@ void VirtRegMap::grow() {
 }
 
 unsigned VirtRegMap::createSpillSlot(const TargetRegisterClass *RC) {
-  int SS = MF->getFrameInfo()->CreateSpillStackObject(RC->getSize(),
-                                                      RC->getAlignment());
+  int SS = MF->getFrameInfo().CreateSpillStackObject(RC->getSize(),
+                                                     RC->getAlignment());
   ++NumSpillSlots;
   return SS;
 }
@@ -110,7 +110,7 @@ void VirtRegMap::assignVirt2StackSlot(unsigned virtReg, int SS) {
   assert(Virt2StackSlotMap[virtReg] == NO_STACK_SLOT &&
          "attempt to assign stack slot to already spilled register");
   assert((SS >= 0 ||
-          (SS >= MF->getFrameInfo()->getObjectIndexBegin())) &&
+          (SS >= MF->getFrameInfo().getObjectIndexBegin())) &&
          "illegal fixed frame index");
   Virt2StackSlotMap[virtReg] = SS;
 }
@@ -177,7 +177,7 @@ public:
   bool runOnMachineFunction(MachineFunction&) override;
   MachineFunctionProperties getSetProperties() const override {
     return MachineFunctionProperties().set(
-        MachineFunctionProperties::Property::AllVRegsAllocated);
+        MachineFunctionProperties::Property::NoVRegs);
   }
 };
 } // end anonymous namespace
@@ -266,7 +266,7 @@ void VirtRegRewriter::addLiveInsForSubRanges(const LiveInterval &LI,
     SlotIndex MBBBegin = MBBI->first;
     // Advance all subrange iterators so that their end position is just
     // behind MBBBegin (or the iterator is at the end).
-    LaneBitmask LaneMask = 0;
+    LaneBitmask LaneMask;
     for (auto &RangeIterPair : SubRanges) {
       const LiveInterval::SubRange *SR = RangeIterPair.first;
       LiveInterval::const_iterator &SRI = RangeIterPair.second;
@@ -277,7 +277,7 @@ void VirtRegRewriter::addLiveInsForSubRanges(const LiveInterval &LI,
       if (SRI->start <= MBBBegin)
         LaneMask |= SR->LaneMask;
     }
-    if (LaneMask == 0)
+    if (LaneMask.none())
       continue;
     MachineBasicBlock *MBB = MBBI->second;
     MBB->addLiveIn(PhysReg, LaneMask);
@@ -338,10 +338,11 @@ bool VirtRegRewriter::readsUndefSubreg(const MachineOperand &MO) const {
   assert(LI.liveAt(BaseIndex) &&
          "Reads of completely dead register should be marked undef already");
   unsigned SubRegIdx = MO.getSubReg();
+  assert(SubRegIdx != 0 && LI.hasSubRanges());
   LaneBitmask UseMask = TRI->getSubRegIndexLaneMask(SubRegIdx);
   // See if any of the relevant subregister liveranges is defined at this point.
   for (const LiveInterval::SubRange &SR : LI.subranges()) {
-    if ((SR.LaneMask & UseMask) != 0 && SR.liveAt(BaseIndex))
+    if ((SR.LaneMask & UseMask).any() && SR.liveAt(BaseIndex))
       return false;
   }
   return true;